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Shallow impurity states in Al_xGa_(1-x)As cylindrical quantum wire

Shallow impurity states in Al_xGa_(1-x)As cylindrical quantum wire
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摘要 Polarons bound to a shallow Coulomb impurity center in cylindrical quantum wire is studied by a vari- ational approach. The binding energies of the shallow impurity states in AlxGal-xAs cylindrical quantum wire are calculated as functions of the composition x and the impurity position. It is confirmed that the binding energies are reduced obviously by the influence of the electron-phonon interaction and the binding energies are increased with increasing the composition x. Polarons bound to a shallow Coulomb impurity center in cylindrical quantum wire is studied by a vari- ational approach. The binding energies of the shallow impurity states in AlxGal-xAs cylindrical quantum wire are calculated as functions of the composition x and the impurity position. It is confirmed that the binding energies are reduced obviously by the influence of the electron-phonon interaction and the binding energies are increased with increasing the composition x.
出处 《Journal of Semiconductors》 EI CAS CSCD 2014年第8期15-19,共5页 半导体学报(英文版)
基金 Project supported by the Inner Mongolia Natural Science Foundation,China(No.2013MS0111) the Research Program of Science and Technology at Universities of Inner Mongolia Autonomous Region(No.NJZZ14159)
关键词 quantum wire electron-phonon interaction impurity states quantum wire electron-phonon interaction impurity states
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参考文献24

  • 1Lin Z C,Lin S D.Lee C P.Ordering of stacked InAs/GaAs quantum-wires in InAlAs/InGaAs matrix on(100)InP substrates.Phys E,2008,40:512.
  • 2Wang S,Kang Y,Han C J.Transverse Stark effect in the optical absorption in a square semiconducting quantum wire.Journal of Semiconductors,2013,34:102001.
  • 3Santhi M,Peter A J.The binding energy of excitons in a cylindrical quantum wire under the influence of laser field intensity.Physica E,2010,42:1643.
  • 4Graham A M,Corfdir P,Heiss M,et al.Exciton localization mechanisms in wurtzite/zinc-blende GaAs nanowires.Phys Rev B,2013,87:125304.
  • 5Zhao Z R,Liang X X.Stark effects on bound polarons in polar cylindrical quantum wires with finite confining potential.J Appl Phys,2009,105:083704.
  • 6Wang X F,Lei X L.Polar-optic phonons and high-field electron transport in cylindrical GaAs/AlAs quantum wires.Phys Rev B,1994,49:4780.
  • 7Li S S,Xia J B.Binding energy ofa hydro genic donor impurity in a rectangular parallelepiped-shaped quantum dot:quantum confinement and Stark effects.J Appl Phys,2007,101:093716.
  • 8Zhao C L,Cai C Y,Xiao J L.The influences of an anisotropic parabolic potential on the quantum dot qubit.Journal of Semiconductors,2013,34(11):112002.
  • 9Yin J W,Li W P,Yu Y F.Properties of a polaron in a quantum dot:a squeezed-state variational approach.Journal of Semiconductors,2013,34(1):012001.
  • 10Zhang L,Shi J J,Tansley T L.Polar vibration spectra of interface optical phonons and electron-interface optical phonon interactions in a wurtzite GaN-AlN nanowire.Phys Rev B,2005,71:245324.

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